If you have a person that fits the criteria for suffering a specific mental illness but then you give them a multivitamin every day, would you still call this person mentally ill or just malnourished or both? I'm just speculating but I think some people would say that yes that person was/is mentally ill and the treatment or "cure" was a multivitamin while other people I think would say that the person wasn't mentally ill it was just that they were malnourished and therefore coming to a conclusion about that person was invalid.
Edit: For those who aren't aware of the benefits of a multivitamin:
http://depression.about.com/cs/diet/a/vitamin.htm
Edit: For those who aren't aware of the benefits of a multivitamin:
http://depression.about.com/cs/diet/a/vitamin.htm